CN101824304A - Mining temperature reduction coolant and preparation method thereof - Google Patents
Mining temperature reduction coolant and preparation method thereof Download PDFInfo
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- CN101824304A CN101824304A CN 201010146973 CN201010146973A CN101824304A CN 101824304 A CN101824304 A CN 101824304A CN 201010146973 CN201010146973 CN 201010146973 CN 201010146973 A CN201010146973 A CN 201010146973A CN 101824304 A CN101824304 A CN 101824304A
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Abstract
The invention relates to a mining temperature reduction coolant and preparation method thereof. The invention takes macromolecular compound polyvinyl alcohol as basic raw material, cross-linking agent in certain proportion is added, wherein the cross-linking agent is 10% borax solution and the like; then freezing point temperature reduction auxiliary agent is added to prepare gel-like coolant, the prepared coolant is injected into a forming container and is frozen and formed in an icehouse the temperature of which is lower than minus 15 DEG C, and then the formed coolant is unfrozen at room temperature and is filled into a packaging bag. The mining temperature reduction coolant of the invention has the following characteristics: (1) elasticity and flexibility are good, comfortable sensation can be obtained when human body touches the coolant; (2) cold accumulation material has major latent heat of phase change and appropriate phase change temperature; (3) the coolant can be repeatedly used, can not be cataklastic, can not contract and can produce no separated water; (4) the coolant can be in close contact with human body when in use, and refrigeration effect can be fully played; (5) no toxin, odour or pollution is produced; (6) cold insulating plate and cold insulating bag of the outer packing of the coolant has the function of 'environmental protection and high efficiency cold insulation heat preservation'.
Description
Technical field
The present invention relates to a kind of mining temperature reduction coolant and preparation method, belong to the cold-storage technical field, be specially adapted to deep high-temperature mine personal protection problem.
Background technology
The colliery is one of main energy sources of China.Along with the development of society and the reinforcement day by day of coal resources exploitation, the pit mining degree of depth is more and more darker, and elevated temperature heat evil mine is also more and more.At present, each country of mainly mining of the world enters deep mining in succession, the progressively increase of mining depth, and ground temperature also increases.According to survey data all over the world, global mean ground temperature gradient is about 3 ℃/100m.Elevated temperature heat evil heat source of underground mine mainly compresses the influence of factors such as heat release, rock heat, electromechanical equipment heat radiation, the heat of oxidation and explosive blasting heat certainly from air, under the influence of these factors, mine temperature is far above the climatic hygiene standard of country's " safety regulations in coal mine " regulation, and underground thermal pollution is very outstanding to the harm that miner's health and Coal Production causes.These harm have a strong impact on the efficient of operating worker and their physical and mental health, even cause the generation of some mine serious accidents probably, have brought great threat for the safety in production and the daily administration thereof of mine.Developing a kind of cool storage material that can absorb heat in miner's protective clothing, improve miner's working heat environment, is significant to working efficiency and the passive protective physical fitness that improves them.The kind of cold storage agent has a lot.As: water, inorganic salt solution, organism, macromolecular material and mixture.Disclosed at present following macromolecular material cold storage agent technical scheme, as: disclose a kind of mixture among the Chinese patent CN1077977A and prepared cold storage agent with starch, starch and frozen glue and starch, frozen glue and organic alcohol and water; China specially CN1242018C discloses a kind of use vinylformic acid, hydroxyethyl methylacrylate and maleic anhydride mixing, adds two own diester of vinylformic acid again and makes linking agent, adds vitriolate of tartar at last as initiator, makes the macromolecule cold accumulation material.The deficiency that the cold storage agent of above-mentioned these technical scheme preparations exists is that cool-storage time is short, cost is high, and some also has defectives such as objectionable impurities, can not satisfy the job requirement of workman's long working under the high-temperature mine condition.
Summary of the invention
At the deficiencies in the prior art and defective, the invention provides that a kind of cold storage agent cold storage capacity is big, non-corrosiveness, nontoxic, pollution-free, be gel at normal temperatures and pressures, and elasticity, snappiness are better, when contacting closely with human body, give full play to the mining temperature reduction coolant of refrigeration, another object of the present invention provides this temperature reduction coolant preparation method.
The present invention is to be basic raw material with the macromolecular compound polyvinyl alcohol, adds a certain proportion of linking agent, and wherein linking agent is 10% borax soln; Add freezing point cooling auxiliary agent etc. again and be mixed with the gel cold storage agent, with the cold storage agent injection molding container that makes, being placed on the icehouse that is lower than-15 ℃ freezes, is shaped, then the cold storage agent that is shaped is at room temperature thawed also filling in packing bag.
The concrete operations step is as follows:
Mining temperature reduction coolant comprises the raw material of following weight part:
High molecular polymer 4-8
10% borax soln 5-15
Freezing point cooling agent 4-8
Water 71-87;
With the above-mentioned raw materials heating, mixing and stirring promptly makes cold storage agent;
Described high molecular polymer is a polyvinyl alcohol;
Described freezing point cooling agent is a propylene glycol.
The preparation manipulation method of mining temperature reduction coolant may further comprise the steps:
A, the polyethylene alcohol and water is added in the container, be heated to 85～95 ℃ while stirring, polyvinyl alcohol is fused fully;
B, continuous stirring reaction container add the freezing point cooling agent, and it is mixed;
C, add 10% borax soln, be stirred to and mix, and under this temperature, kept 10 minutes, make cold storage agent;
D, with the cold storage agent injection molding container that makes, be placed on the icehouse that is lower than-15 ℃ and freeze, be shaped, then the cold storage agent that is shaped is at room temperature thawed and filling gets product in packing bag.Mining temperature reduction coolant of the present invention has following characteristics: (1) this cold storage agent is a kind of polyalcohol hydrogel, and it can have the refrigerant of flexibility at low temperatures, and its elasticity, snappiness are good, when human body is in contact with it, comfort are arranged; (2) cool storage material has bigger latent heat of phase change and suitable transformation temperature; (3) can use repeatedly, not cracked, do not shrink, and it is dried up not produce branch; Can contact closely with human body when (4) using, give full play to refrigeration; (5) nontoxic, tasteless, pollution-free; (6) the cold storage agent outer packaging every cold drawing, have " environmental protection, high efficiency cold insulation " effect every cold bag; (7) this cool storage material is produced simply, does not need expensive complex apparatus.
Description of drawings
Fig. 1 is the DSC curve of cool storage material phase transition process.
Embodiment
Below in conjunction with embodiment, the present invention is done to describe further.
Embodiment 1:
Mining temperature reduction coolant comprises the raw material of following weight part:
Polyvinyl alcohol 6kg, 10% borax soln 15kg, propylene glycol 4kg, water 75kg.
The concrete preparation manipulation method of cold storage agent is as follows:
A, by above-mentioned prescription, the polyethylene alcohol and water is added in the container, be heated to 85～95 ℃ while stirring, polyvinyl alcohol is fused fully;
B, continuous stirring reaction container add the freezing point cooling agent, and it is mixed;
C, add 10% borax soln, be stirred to and mix, and under this temperature, kept 10 minutes, make cold storage agent;
D, with the cold storage agent injection molding container that makes, be placed on the icehouse that is lower than-15 ℃ and freeze, be shaped, then the cold storage agent that is shaped is at room temperature thawed and filling gets product in packing bag.
This cold storage agent initial melt temperature-5.1 ℃, latent heat of fusion 242.1J/g sees Fig. 1; And toxicity: do not have; Corrodibility: do not have; Outward appearance: colorless transparent gel body; Stability: the degraded that phase-change material for cold storage does not produce in the phase transition process, the life-span is greater than 5000 thermal cyclings, and chemical property is stable, no decomposition.And having bigger latent heat of phase change, can satisfy the needs of mining temperature reduction to cold storage agent, is a kind of comparatively ideal cool storage material.
Embodiment 2:
Mining temperature reduction coolant comprises the raw material of following weight part:
Polyvinyl alcohol 4kg, 10% borax soln 5kg, propylene glycol 4kg, water 87kg.
The concrete preparation manipulation method of cold storage agent is with embodiment 1.
This cold storage agent initial melt temperature-3.6 ℃, latent heat of fusion 247.5J/g.
Embodiment 3:
Mining temperature reduction coolant comprises the raw material of following weight part:
Polyvinyl alcohol 4kg, 10% borax soln 15kg, propylene glycol 8kg, water 73kg.
The concrete preparation manipulation method of cold storage agent is with embodiment 1.
This cold storage agent initial melt temperature-4.4 ℃, latent heat of fusion 225.5J/g.
Embodiment 4:
Mining temperature reduction coolant comprises the raw material of following weight part:
Polyvinyl alcohol 6kg, 10% borax soln 5kg, propylene glycol 6kg, water 83kg.
The concrete preparation manipulation method of cold storage agent is with embodiment 1.
This cold storage agent initial melt temperature-4.5 ℃, latent heat of fusion 200.2J/g.
Embodiment 5:
Mining temperature reduction coolant comprises the raw material of following weight part:
Polyvinyl alcohol 6kg, 10% borax soln 10kg, propylene glycol 8kg, water 76kg.
The concrete preparation manipulation method of cold storage agent is with embodiment 1.
This cold storage agent initial melt temperature-2.9 ℃, latent heat of fusion 176.5J/g.
Embodiment 6:
Mining temperature reduction coolant comprises the raw material of following weight part:
Polyvinyl alcohol 8kg, 10% borax soln 5kg, propylene glycol 8kg, water 78kg.
The concrete preparation manipulation method of cold storage agent is with embodiment 1.
This cold storage agent initial melt temperature-5.6 ℃, latent heat of fusion 186.4J/g.
Embodiment 7:
Mining temperature reduction coolant comprises the raw material of following weight part:
Polyvinyl alcohol 8kg, 10% borax soln 10kg, propylene glycol 5kg, water 78kg.
The concrete preparation manipulation method of cold storage agent is with embodiment 1.
This cold storage agent initial melt temperature-5.2 ℃, latent heat of fusion 177.9J/g.
Embodiment 8:
Mining temperature reduction coolant comprises the raw material of following weight part:
Polyvinyl alcohol 8kg, 10% borax soln 15kg, propylene glycol 10kg, water 82kg.
The concrete preparation manipulation method of cold storage agent is with embodiment 1.
This cold storage agent initial melt temperature-3.4 ℃, latent heat of fusion 221.2J/g.
Embodiment 9:
Mining temperature reduction coolant comprises the raw material of following weight part:
Polyvinyl alcohol 6kg, 10% borax soln 8kg, propylene glycol 8kg, water 71kg.
The concrete preparation manipulation method of cold storage agent is with embodiment 1.
This cold storage agent initial melt temperature-2.6 ℃, latent heat of fusion 189J/g.
Claims (2)
1. mining temperature reduction coolant is characterized in that: the raw material that comprises following weight part:
High molecular polymer 4-8
10% borax soln 5-15
Freezing point cooling agent 4-8
Water 71-87;
With the above-mentioned raw materials heating, mixing and stirring promptly makes cold storage agent;
Described high molecular polymer is a polyvinyl alcohol;
Described freezing point cooling agent is a propylene glycol.
2. the preparation method of mining temperature reduction coolant according to claim 1 is characterized in that: concrete preparation manipulation method may further comprise the steps:
A, the polyethylene alcohol and water is added in the container, be heated to 85～95 ℃ while stirring, polyvinyl alcohol is fused fully;
B, continuous stirring reaction container add the freezing point cooling agent, and it is mixed;
C, add 10% borax soln, be stirred to and mix, and under this temperature, kept 10 minutes, make cold storage agent;
D, with the cold storage agent injection molding container that makes, be placed on the icehouse that is lower than-15 ℃ and freeze, be shaped, then the cold storage agent that is shaped is at room temperature thawed and filling gets product in packing bag.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010146973 CN101824304A (en) | 2010-04-14 | 2010-04-14 | Mining temperature reduction coolant and preparation method thereof |
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| CN 201010146973 CN101824304A (en) | 2010-04-14 | 2010-04-14 | Mining temperature reduction coolant and preparation method thereof |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032749A (en) * | 2010-12-28 | 2011-04-27 | 胡冰 | Code storage device for cold storage and preservation of refrigerator |
| CN103725258A (en) * | 2013-12-16 | 2014-04-16 | 苏州安特实业有限公司 | Macromolecule coolant and preparation method thereof |
| CN103734267A (en) * | 2013-12-16 | 2014-04-23 | 苏州安特实业有限公司 | Slow-release litchi-chinensis nanometer cool-storage agent and preparation method thereof |
| CN104087253A (en) * | 2014-07-11 | 2014-10-08 | 北京博润佳科技有限公司 | Coolant for ice bag |
| CN104497989A (en) * | 2015-01-22 | 2015-04-08 | 中国人民解放军总装备部卫生防疫队 | Hydrogel type phase-change cold storage material and preparation method thereof |
| CN104849303A (en) * | 2015-05-20 | 2015-08-19 | 西安科技大学 | Phase change cooling research method of filling body in high-temperature deep well |
| CN105838330A (en) * | 2016-01-04 | 2016-08-10 | 浙江海洋学院 | Preparation method of high-crystallization enthalpy value low-temperature phase transition nanometer cold storage material |
| CN105860935A (en) * | 2016-01-04 | 2016-08-17 | 浙江海洋学院 | Preparation process for low-temperature phase-change nano cold storage material having bacteriostatic effect |
| CN107637893A (en) * | 2017-09-26 | 2018-01-30 | 中国安全生产科学研究院 | A kind of cooling clothes of combination gas cooling and phase-change material |
| CN109135500A (en) * | 2018-07-05 | 2019-01-04 | 常州五荣化工有限公司 | A kind of preparation method of antifouling anticorrosive paint peculiar to vessel |
| CN110845998A (en) * | 2019-11-11 | 2020-02-28 | 合肥学院 | Flexible high polymer material coolant and preparation method thereof |
| CN111647389A (en) * | 2020-06-17 | 2020-09-11 | 塔里木大学 | Preparation method and product of phase change coolant |
| CN111826131A (en) * | 2020-05-27 | 2020-10-27 | 纯钧新材料(深圳)有限公司 | Preparation method of high-stability composite phase-change gel for cold chain transportation of 2-8 ℃ medicines |
| CN113513878A (en) * | 2021-08-23 | 2021-10-19 | 哈尔滨商业大学 | Quick-freezing system for frozen food and preparation method of refrigerating fluid for system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5636538A (en) * | 1979-09-04 | 1981-04-09 | Nitto Electric Ind Co Ltd | Water-containing gel |
-
2010
- 2010-04-14 CN CN 201010146973 patent/CN101824304A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5636538A (en) * | 1979-09-04 | 1981-04-09 | Nitto Electric Ind Co Ltd | Water-containing gel |
Non-Patent Citations (1)
| Title |
|---|
| 《中华护理杂志》 19800629 牟春生等 "聚乙烯醇冰袋"配制及应用 272-273 1-2 , 第6期 2 * |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032749A (en) * | 2010-12-28 | 2011-04-27 | 胡冰 | Code storage device for cold storage and preservation of refrigerator |
| CN103725258B (en) * | 2013-12-16 | 2016-09-14 | 苏州安特实业有限公司 | A kind of Macromolecule coolant and preparation method thereof |
| CN103725258A (en) * | 2013-12-16 | 2014-04-16 | 苏州安特实业有限公司 | Macromolecule coolant and preparation method thereof |
| CN103734267A (en) * | 2013-12-16 | 2014-04-23 | 苏州安特实业有限公司 | Slow-release litchi-chinensis nanometer cool-storage agent and preparation method thereof |
| CN103734267B (en) * | 2013-12-16 | 2015-09-16 | 苏州安特实业有限公司 | Slowly-releasing lichee nanometer agent for storage of coldness and preparation method thereof |
| CN104087253A (en) * | 2014-07-11 | 2014-10-08 | 北京博润佳科技有限公司 | Coolant for ice bag |
| CN104087253B (en) * | 2014-07-11 | 2017-05-31 | 北京博润佳科技有限公司 | A kind of ice bag agent for storage of coldness |
| CN104497989A (en) * | 2015-01-22 | 2015-04-08 | 中国人民解放军总装备部卫生防疫队 | Hydrogel type phase-change cold storage material and preparation method thereof |
| CN104849303B (en) * | 2015-05-20 | 2018-07-13 | 西安科技大学 | A kind of phase transformation cooling research method of high temperature deep well retrofilling body |
| CN104849303A (en) * | 2015-05-20 | 2015-08-19 | 西安科技大学 | Phase change cooling research method of filling body in high-temperature deep well |
| CN105860935A (en) * | 2016-01-04 | 2016-08-17 | 浙江海洋学院 | Preparation process for low-temperature phase-change nano cold storage material having bacteriostatic effect |
| CN105838330A (en) * | 2016-01-04 | 2016-08-10 | 浙江海洋学院 | Preparation method of high-crystallization enthalpy value low-temperature phase transition nanometer cold storage material |
| CN107637893A (en) * | 2017-09-26 | 2018-01-30 | 中国安全生产科学研究院 | A kind of cooling clothes of combination gas cooling and phase-change material |
| CN109135500A (en) * | 2018-07-05 | 2019-01-04 | 常州五荣化工有限公司 | A kind of preparation method of antifouling anticorrosive paint peculiar to vessel |
| CN110845998A (en) * | 2019-11-11 | 2020-02-28 | 合肥学院 | Flexible high polymer material coolant and preparation method thereof |
| CN111826131A (en) * | 2020-05-27 | 2020-10-27 | 纯钧新材料(深圳)有限公司 | Preparation method of high-stability composite phase-change gel for cold chain transportation of 2-8 ℃ medicines |
| CN111647389A (en) * | 2020-06-17 | 2020-09-11 | 塔里木大学 | Preparation method and product of phase change coolant |
| CN113513878A (en) * | 2021-08-23 | 2021-10-19 | 哈尔滨商业大学 | Quick-freezing system for frozen food and preparation method of refrigerating fluid for system |
| CN113513878B (en) * | 2021-08-23 | 2022-05-17 | 哈尔滨商业大学 | Quick-freezing system for frozen food and preparation method of refrigerating fluid for system |
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Application publication date: 20100908 |